CN208799301U - Hip joint positioning fixture - Google Patents
Hip joint positioning fixture Download PDFInfo
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- CN208799301U CN208799301U CN201720920964.7U CN201720920964U CN208799301U CN 208799301 U CN208799301 U CN 208799301U CN 201720920964 U CN201720920964 U CN 201720920964U CN 208799301 U CN208799301 U CN 208799301U
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- ruler
- protractor
- positioning column
- positioning
- hip joint
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Abstract
The utility model discloses a kind of hip joint positioning fixtures, including positioning column, transfer tube, protractor, vernier scale and ruler, positioning column is connect by transfer tube with protractor, acetabular component angle measurement unit is constituted between positioning column, transfer tube and protractor three, positioning column is connect with vernier caliper, vernier caliper is connect with ruler, and acetabular component Leg length measuring device is constituted between positioning column and vernier scale, ruler three；By being provided with acetabular component angle measurement unit and acetabular component length-measuring appliance, acetabular component abduction angle and acetabular component forward leaning angle can be both measured during surgery, Leg length and femoral offset can be measured again, it is able to carry out Leg length, femur bias man and acetabular component angle measurement during surgery, to accomplish to know what's what, operation is accomplished precisely.
Description
Technical field
The utility model relates to Bones and joints technical field of surgical instruments, and in particular to a kind of hip pass applied to medical operating
Save positioning fixture.
Background technique
Artificial full hip-joint replacement (total hip arthroplasty, THA) is treatment hip joint severe osteoarthritis
With the main means of developmental deformity, patient's function can be made to be obviously improved.However the good artificial of a long term survival, function closes
Section needs various aspects factor to coordinate and balance, and needs to accomplish to restore rotation center, eccentricity, head mortar relationship (prosthese position and angle
Degree), the factors such as Leg length, therefore, the adjustment of any factor can only all adjust in limited range, it is not possible to sacrifice principle and change
Take the convenience performed the operation in art.
If Leg length, femoral offset and acetabular component angle measurement are able to carry out in THA surgery, to accomplish
Know what's what, operation is accomplished precisely.Computer navigation at present and robotic surgery have certain advantage to these aspects, but consume
Fei Gao, operation has learning curve, and some researches show that it to have there are biggish error, so more in research hip replacement
Functional measurement locator is the hot spot of current joint surgery research.
It is current when carrying out artificial hip joint replacing operation, need to acetabular bone angle, Leg length and femoral offset
It is positioned, typically judges that Acetabular abduction, the angle of top rake, lower limb are long according to the experience of doctor and visual observation
Degree and femoral offset, but this judgment method error is big, and postoperative prosthese is easily caused to mismatch, prosthetic loosening dislocation, prosthese mill
Damage is big, reduces the service life of prosthese, and the Length discrepancy of postoperative double lower limb, femoral offset is bigger than normal or less than normal, cause gluteus medius without
Power and abnormal gait etc. increase the pain and financial burden of patient to carry out revision procedure, while also easily causing human body bone
Occur multiple complications at bone, seriously affects the health of patient；In addition, existing measurement acetabular bone angle, Leg length and
Femoral offset is measured with separated tool, should prepare the tool for measuring acetabular bone angle when being performed the operation, again
Prepare the tool of measurement Leg length and femoral offset, it is more troublesome in use, and it be easy to cause use more chaotic.
It is accordingly required in particular to design a kind of not only amount of being capable of measuring acetabular bone angle but also be capable of measuring limb length and femoral offset
Hip joint positioning fixture, to solve problems of the prior art.
Utility model content
Purpose of the utility model is to solve defects in the prior art, provide a kind of both amount of being capable of measuring angulus acetabularis
Degree, the hip joint positioning fixture for being capable of measuring limb length and femoral offset again, to solve problems of the prior art.
To achieve the above object, the technical solution of the utility model is as follows:
A kind of hip joint positioning fixture, including positioning column, transfer tube, protractor, vernier scale and ruler, the positioning column are logical
It crosses transfer tube to connect with protractor, acetabular component angle measurement dress is constituted between the positioning column, transfer tube and protractor three
It sets, the positioning column is connect with vernier caliper, and the vernier caliper is connect with ruler, the positioning column and vernier scale, ruler three
Acetabular component Leg length measuring device is constituted between person.
In order to further realize the utility model, the positioning column is divided into front, middle part and top, and the front is provided with
Tip, the tip are small top and big bottom cone, and the sharp parts of the cone at the tip facilitate in insertion bone
It is fixed.
In order to further realize the utility model, the overall length of the positioning column is 15cm, and the front is long 3cm, diameter
The cylindrical body of 2mm, the middle part are long 9cm, and the cylindrical body of diameter 6mm, the top is long 3cm, the cylindrical body of diameter 4mm.
In order to further realize the utility model, there is branch in the middle part of the transfer tube, it is orthogonal that the branch is provided with cross
Slot position, the slot position provide mutually orthogonal positioning for protractor for being inserted into protractor, the protractor include positioning bone with
Dial, the positioning bone are adapted with the slot position of transfer tube branch.
In order to further realize the utility model, the positioning bone of the protractor is placed across in slot position for measuring hip
Mortar prosthese abduction angle, the positioning bone of the protractor is placed longitudinally to lean forward in the slot position of transfer tube for measuring acetabular component
Angle.
In order to further realize the utility model, the diameter of the dial is 4cm, and range is 180 degree, with the scale
The middle line of disk is 0 degree, and there is scale on both sides, and the scale value of a height of 2mm of word is indicated on corresponding scale, and the dial is most
Down scale is 5 degree.
In order to further realize the utility model, described vernier scale one end is fixedly installed fixing sleeve, the fixed pullover
Portion is provided with the cylindrical hole for being inserted at the top of positioning column, and the cylindrical hole is adapted with the cylindrical body at the top of positioning column.
In order to further realize the utility model, the back side of the sliding block of the vernier scale is fixedly installed with fixed block, described
Fixed block is provided with the fixing groove of fixed ruler, and briquetting is additionally provided in the fixing groove, and the briquetting is adapted with fixing groove.
In order to further realize the utility model, the fixed block can follow the sliding of vernier scale and slide.
In order to further realize the utility model, the ruler is the transformation of common stainless steel ruler, the thickness of the ruler
About 1mm, the ruler front end are made into tip-angled shape.
Beneficial effect
(1) the present utility model first purpose is by being provided with acetabular component angle measurement unit and acetabular component length
Measuring device can not only measure acetabular component abduction angle and acetabular component forward leaning angle during surgery, but also can measure
Leg length and femoral offset are able to carry out Leg length, femur bias man and acetabular component angle measurement during surgery, from
And accomplish to know what's what, operation is accomplished precisely, to make its functional diversities, avoids postoperative double lower limb Length discrepancy, eccentricity occur
It is bigger than normal or less than normal cause gluteus medius powerless and abnormal gait, acetabular component angle of splay be excessive or too small feelings for causing to dislocate or hit
Condition.
(2) the present utility model first purpose is by the way that transfer tube to be socketed at the top of positioning column, and mixes up suitably
Angle, the positioning bone of protractor is secured transverse to the slot position of the branch of transfer tube later, then by the front of positioning column point
The cone sharp parts at end are inserted into acetabular bone upper limb (12 orientation, opposite with fossa ovalis and transverse ligament) stationary positioned, pass through reading
Take the angle of the dial of protractor, the abduction angle in measurement 12 directions of acetabular bone and acetabular component merging bar, angle index essence
Really in 5 degree, to control outreach at 40 degree or so, avoid acetabular component angle of splay excessive or it is too small cause to dislocate or hit,
Measurement is precisely, easy to use.
(3) the present utility model first purpose is by the way that transfer tube to be socketed at the top of positioning column, and mixes up suitably
Angle, the positioning bone of protractor is vertically fixed in the slot position of the branch of transfer tube later, then by the front of positioning column point
The cone sharp parts at end are inserted into acetabular bone upper limb (12 orientation, opposite with fossa ovalis and transverse ligament) stationary positioned, pass through reading
The angle of the dial of protractor is taken, the abduction angle in measurement 12 directions of acetabular bone and acetabular component merging bar is accurate to 5 degree
It is interior, so that control and can be adjusted according to circumstances forward in 15 degree or so, avoids acetabular component top rake excessive or too small cause
Dislocation is hit, and can accurately measure acetabular component top rake during surgery, to accomplish to know what's what, essence is accomplished in operation
It is quasi-.
(4) cylindrical body at the top of positioning column by being inserted into the fixing sleeve of vernier scale by the present utility model first purpose
In cylindrical hole, by the cone sharp parts of positioning column forward tip insertion acetabular bone upper limb (12 orientation, it is tough with fossa ovalis and cross
Band is opposite) stationary positioned, acetabular bone upper limb is then measured to the distance on greater trochanter vertex, is read the degree of vernier scale, is accurate to milli
Meter, expected length control is accomplished in postoperative measurement in preoperative art, the Length discrepancy of postoperative double lower limb is avoided, to accomplish have in the heart
Number, accomplishes operation precisely.
(5) cylindrical body at the top of positioning column by being inserted into the fixing sleeve of vernier scale by the present utility model first purpose
In cylindrical hole, then ruler is inserted at the fixing groove of vernier scale, later by the cone sharp parts of fixed column forward tip
It is inserted into acetabular bone upper limb (12 orientation, opposite with fossa ovalis and transverse ligament) stationary positioned, measurement vernier scale to greater trochanter vertex
Distance reads the degree of ruler, is accurate to millimeter, fixed after measuring before dislocation of hip joint osteotomy, postoperative compare is looked into art
It sees femoral offset situation of change, accomplishes expected eccentricity control, avoid gluteus medius inability and abnormal gait.
Detailed description of the invention
Fig. 1 is the Structure explosion diagram of the utility model hip joint positioning fixture；
Fig. 2 is the structural schematic diagram of the utility model vernier scale.
Description of symbols:
1, positioning column；11, front；12, middle part；13, top；2, transfer tube；21, slot position；3, protractor；31, bone is positioned；
32, dial；4, vernier scale；41, fixing sleeve；42, fixed block；421, fixing groove；4211, briquetting；5, ruler.
Specific embodiment
The utility model is further described in detail with reference to the accompanying drawing, these attached drawings are simplified signal
Figure, only illustrates the basic structure of the utility model, the direction of this specific implementation is using the direction Fig. 1 as standard in a schematic way.
As shown in Figure 1 to Figure 2, the utility model hip joint positioning fixture includes positioning column 1, transfer tube 2, protractor 3, trip
Scale 4 and ruler 5, positioning column 1 are connect by transfer tube 2 with protractor 3, and acetabular component angle measurement unit, positioning column 1 are constituted
Acetabular component Leg length measuring device is constituted between vernier scale 4,5 three of ruler, in which:
Positioning column 1 is used to be inserted into effect that is fixed in bone and positioning, and the overall length of positioning column 1 is 15cm, wherein positioning column 1
It is divided into front 11, middle part 12 and top 13, middle front part 11 is long 3cm, the cylindrical body of diameter 2mm, and front 11 is provided with
End, tip are small top and big bottom cone, and the sharp parts of the cone at tip facilitate fixed in insertion bone, middle part 12
For long 9cm, the cylindrical body of diameter 6mm, top 13 is long 3cm, and the cylindrical body of diameter 4mm, top 13 is for placing transfer tube 2
With vernier scale 4.
Transfer tube 2 has branch in the middle part of transfer tube 2, is provided with the orthogonal slot position of cross for connecting protractor 3 and positioning column 1
21, for being inserted into protractor 3, mutually orthogonal positioning is provided for protractor 3, protractor 3 is allowed to be placed across slot position
, can also be placed longitudinally in the slot position 21 of transfer tube 2 on 21, the angle diversity of measurement, transfer tube 2 is placed on positioning column 1
Top 13 can rotate transfer tube 2 for adjusting angle of the transfer tube 2 relative to positioning column 1, then by protractor 3 and be inserted into switching
The slot position 21 of pipe 2.
Protractor 3 includes positioning bone 31 and dial 32, and positioning bone 31 is adapted with the slot position 21 of 2 branch of transfer tube, will
When the slot position 21 of positioning laterally inserted 2 branch of transfer tube of bone 31 of protractor 3, so that protractor 3 is fixed in slot position 21, and need
When measuring other angle, the positioning bone 31 of protractor 3 can also be longitudinally inserted into the slot position 21 of branch, dial 32 it is straight
Diameter is 4cm, and range is 180 degree, and with the middle line of dial 32 for 0 degree, there is scale on both sides, and indicate word on corresponding scale
The scale value of a height of 2mm, the minimum scale of dial 32 are 5 degree.
When measuring acetabular component abduction angle, transfer tube 2 is socketed at the top 13 of positioning column 1, and is mixed up appropriate
The positioning bone 31 of protractor 3 is secured transverse to the slot position 21 of the branch of transfer tube 2, then by positioning column 1 by angle later
The cone sharp parts of forward tip are inserted into acetabular bone upper limb (12 orientation, opposite with fossa ovalis and transverse ligament) stationary positioned,
By reading the angle of the dial 32 of protractor 3, the abduction angle in measurement 12 directions of acetabular bone and acetabular component merging bar, angle
Degree scale is accurate in 5 degree, to control outreach at 40 degree or so, is avoided acetabular component angle of splay excessive or too small is caused to dislocate
Or it hits.
When measuring acetabular component forward leaning angle, transfer tube 2 is socketed at the top 13 of positioning column 1, and is mixed up appropriate
The positioning bone 31 of protractor 3 is vertically fixed in the slot position 21 of the branch of transfer tube 2, then by positioning column 1 by angle later
The cone sharp parts of forward tip are inserted into acetabular bone upper limb (12 orientation, opposite with fossa ovalis and transverse ligament) stationary positioned,
By reading the angle of the dial 32 of protractor 3, the abduction angle in measurement 12 directions of acetabular bone and acetabular component merging bar, essence
Really in 5 degree, so that control is forward in 15 degree or so, and can according to circumstances adjust, avoid acetabular component top rake excessive or
It is too small to cause to dislocate or hit.
Vernier scale 4 is transformed by existing vernier caliper, and 4 one end of vernier scale is fixedly installed fixing sleeve 41, vernier scale 4
The back side of sliding block be fixedly installed with fixed block 42, fixed one end for being placed on vernier scale 4 of fixing sleeve 41, and 41 head of fixing sleeve is set
It is equipped with the cylindrical hole 411 for being inserted into 1 top 13 of positioning column, cylindrical body of the cylindrical hole 411 in 1 top 13 of positioning column is adapted,
Fixed block 42 can follow the sliding of vernier scale 4 and slide, and fixed block 42 is provided with the fixing groove 421 of fixed ruler 5, fixing groove
Briquetting 4211 is additionally provided on 421, briquetting 4211 is adapted with fixing groove 421, when ruler 5 is inserted into fixing groove 421, uses briquetting
4211 push down ruler 5, and are screwed the position of ruler 5.
Ruler 5 is the transformation of common stainless steel ruler 5, and the thickness of ruler 5 is about 1mm, and 5 front end of ruler is made into tip-angled shape, side
Just bone is touched.
When measuring Leg length, by the cylindrical hole of the fixing sleeve 41 of the cylindrical body insertion vernier scale 4 at 1 top 13 of positioning column
In 411, the cone sharp parts of 1 forward tip of positioning column are inserted into acetabular bone upper limb (12 orientation, with fossa ovalis and transverse ligament
Stationary positioned relatively) then measures the distance of acetabular bone upper limb to greater trochanter vertex, reads the degree of vernier scale 4, is accurate to milli
Meter, expected length control is accomplished in postoperative measurement in preoperative art, avoids the Length discrepancy of postoperative double lower limb.
When measuring femoral offset, by the cylinder of the fixing sleeve 41 of the cylindrical body insertion vernier scale 4 at 1 top 13 of positioning column
In hole 411, then ruler 5 is inserted at the fixing groove 421 of vernier scale 4, later by the cone point of 1 forward tip of positioning column
Sharp partial insertion acetabular bone upper limb (12 orientation, opposite with fossa ovalis and transverse ligament) stationary positioned, measurement vernier scale 4 turn to big
The distance of son vertex reads the degree of ruler 5, is accurate to millimeter, fixed after measuring before dislocation of hip joint osteotomy, in art it is postoperative into
Femoral offset situation of change is checked in row comparison, is accomplished expected eccentricity control, is avoided gluteus medius inability and abnormal gait.
The foregoing is merely the better embodiment of the utility model, the utility model is not limited to above-mentioned embodiment party
Formula, there may be the structural modifications that part is small in implementation process, if various changes or modifications to the utility model are not
The spirit and scope of the utility model are detached from, and are belonged within the scope of the claims and equivalents of the utility model, then originally
Utility model is also intended to encompass these modification and variations.
Claims (10)
1. a kind of hip joint positioning fixture, which is characterized in that including positioning column, transfer tube, protractor, vernier scale and ruler, institute
It states positioning column to connect by transfer tube with protractor, constitutes acetabular component between the positioning column, transfer tube and protractor three
Angle measurement unit, the positioning column are connect with vernier caliper, and the vernier caliper is connect with ruler, the positioning column and vernier
Acetabular component length-measuring appliance is constituted between ruler, ruler three.
2. hip joint positioning fixture according to claim 1, which is characterized in that the positioning column be divided into front, middle part and
Top, the front are provided with tip, and the tip is small top and big bottom cone, the cone at the tip it is sharp
Part facilitates fixed in insertion bone.
3. hip joint positioning fixture according to claim 2, which is characterized in that the overall length of the positioning column is 15cm, institute
Stating front is long 3cm, and the cylindrical body of diameter 2mm, the middle part is long 9cm, and the cylindrical body of diameter 6mm, the top is length
3cm, the cylindrical body of diameter 4mm.
4. hip joint positioning fixture according to claim 1, which is characterized in that there is branch in the middle part of the transfer tube, it is described
Branch is provided with the orthogonal slot position of cross, and the slot position is used to be inserted into protractor, and mutually orthogonal positioning is provided for protractor, described
Protractor includes that positioning bone and dial, the positioning bone are adapted with the slot position of transfer tube branch.
5. hip joint positioning fixture according to claim 4, which is characterized in that the positioning bone of the protractor is laterally disposed
For measuring acetabular component abduction angle in slot position, the positioning bone of the protractor is placed longitudinally to be used in the slot position of transfer tube
In measurement acetabular component forward leaning angle.
6. hip joint positioning fixture according to claim 4, which is characterized in that the diameter of the dial is 4cm, range
For 180 degree, with the middle line of the dial for 0 degree, there is scale on both sides, and the quarter of a height of 2mm of word is indicated on corresponding scale
Angle value, the minimum scale of the dial are 5 degree.
7. hip joint positioning fixture according to claim 1, which is characterized in that described vernier scale one end is fixedly installed
Fixed set, the fixing sleeve head are provided with the cylindrical hole for being inserted at the top of positioning column, at the top of the cylindrical hole and positioning column
Cylindrical body is adapted.
8. hip joint positioning fixture according to claim 1, which is characterized in that the back side of the sliding block of the vernier scale is fixed
Fixed block is installed, the fixed block is provided with the fixing groove of fixed ruler, and briquetting, the pressure are additionally provided in the fixing groove
Block is adapted with fixing groove.
9. hip joint positioning fixture according to claim 8, which is characterized in that the fixed block can follow vernier scale
It slides and slides.
10. hip joint positioning fixture according to claim 1, which is characterized in that the ruler is common stainless steel ruler
Transformation, the thickness of the ruler is about 1mm, and the ruler front end is made into tip-angled shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720920964.7U CN208799301U (en) | 2017-07-26 | 2017-07-26 | Hip joint positioning fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720920964.7U CN208799301U (en) | 2017-07-26 | 2017-07-26 | Hip joint positioning fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208799301U true CN208799301U (en) | 2019-04-30 |
Family
ID=66223894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720920964.7U Active CN208799301U (en) | 2017-07-26 | 2017-07-26 | Hip joint positioning fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208799301U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111759398A (en) * | 2020-07-17 | 2020-10-13 | 杭州市萧山区中医院 | Osteotomy ruler for pelvic osteotomy and measuring method |
-
2017
- 2017-07-26 CN CN201720920964.7U patent/CN208799301U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111759398A (en) * | 2020-07-17 | 2020-10-13 | 杭州市萧山区中医院 | Osteotomy ruler for pelvic osteotomy and measuring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Zhiqi Inventor after: Gu Minghui Inventor after: Fu Ming Inventor after: Liao Weiming Inventor after: Guo Shaocheng Inventor after: Peng Yun Inventor before: Zhang Zhi Inventor before: Gu Minghui Inventor before: Fu Ming Inventor before: Liao Weiming Inventor before: Guo Shaocheng Inventor before: Peng Yun |
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| CB03 | Change of inventor or designer information |